How old were they?

Jack O'Brien

C · Born June 12, 1860

Age in each season

1. 1882 (Athletics): 21 years, 293 days to 22 years, 111 days
2. 1883 (Athletics): 22 years, 293 days to 23 years, 111 days
3. 1884 (Athletics): 23 years, 294 days to 24 years, 111 days
4. 1885 (Athletics): 24 years, 293 days to 25 years, 111 days
5. 1886 (Athletics): 25 years, 293 days to 26 years, 111 days
6. 1887 (Grays): 26 years, 293 days to 27 years, 111 days
7. 1888 (Orioles): 27 years, 294 days to 28 years, 111 days
8. 1890 (Athletics): 29 years, 293 days to 30 years, 111 days